Improvement in paper organ-pipes



G. BEACH. Paper Organ-Pipe.

Paten ted Mar. 25, 1879,

UNITED STATES PATENT OFFICE IILES BEACH, OF GLOVERSVILLE, NEXV YORK.

IMPROVEMENT IN PAPER ORGAN-PIPES.

Specification forming part of Letters Patent No. 213,612, dated March25, 1879; application filed April 5, 1878.

To all whom it may concern:

Be it known that I, GrLns BEACH, of G'lovcrsville, in the county ofFulton and State of New York, have invented an Improvement in Pipes andConductors of Organs; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accompanying drawings, forming part of this specification.

The invention has principally for its objects the construction of thepipes and wind-conductors of organs free from liability to change fromalterations in the hygrometrie state of the atmosphere, and also farless liable to change in length and diameter through chan gcs intemperature; but other advantages secured are eheapness, durability, andan improvement in the quality of the tone in the speaking or sonorouspipes.

The invention consists in the manufacture of such pipes and conductorsof paper, as hereinafter described.

The invention will be sufficiently illustrated by adeseription of thesame as applied to a chimney-topstopped diapason pipe, although it isapplicable to other organ-pipes and the conductors of wind employed inorgans.

Figure 1 in the drawings represents a vertical central section of suchan organ-pipe constructed in accordance with my invention. Fig. 2 is afront view of the same, and Fig. 3 a horizontal cross-section.

A is a pipe of paper, made by winding a sheet of paper on a mandrel,said paper being coated or saturated with a suitable cement, which bindsthe several layers of paper, and which, when dry, cements the saidlayers togethcr into a rigid tube, impervious to air and moisture, andwhich has a very small coeflicient of expansion by heat or ofcontraction by cold.

The cement which I have so far found preferable for this purpose iscomposed of about one part gum-shellac, dissolved to a thick varnish inalcohol, two parts blehromate of potash, in saturated aqueous solution,and seven parts of glue, dissolved in water, by the aid of heat, toabout the consistency of ordinary glue forjoining wood, the said partsor proportions of the materials being determined by weight; but othercements which are not affected by moisture and which are little affectedby temperature, may be employed.

After the pipe thus made has dried and hardened, a portion is cut awayfrom the side at the bottom, and a plate, B, of similar material, iscemented thereto, the lower edge of which plate forms the vibrating lipor wind cutter of the pipe.

Within the bottom of the said pipe is cemented the block 1), constructedin the usual manner, into which the hollow cylinder E is inserted forconveying air from the soundboard to the pipe. To the front of the lowerpart of the said block D, and also to the cut edges of the pipe, at theusual distance below the wind-cutter O, is attached the block F, of theusual form. Said block is cemented to the block D, and also to the outedges of the pipe A, and is preferably further secured to the block I)by screws G.

H represents a chimney-top inserted in the tampion I, in the usualmanner, said tampion being fitted to the interior of the pipe A, as isordinarily done.

Organ-pipes constructed of the materials and in the manner described arepractically unalterable in diameter and length through thermometric orhygromctric influences, and consequently when tuned they remain in tunein either cold or damp or warm and dry rooms. The pipes may be made atmuch less cost than that of wood or metal pipes. They are far lighterthan ordinary metal or wooden pipes, and are far stronger than pipes ofwood or metal having the same weight. Said pipes also give a morerefined tone than pipes of wood or metal.

Instead of making the pipes or conductors of paper wound on a mandreland laid up with cement, I may employ paper material of any kind in theform of pulp or otherwise, and having first formed a pipe or conductorof the same, coat or saturate the same with a cement or varnishimpervious to water or watery vapor. In forming these pipes orconductors I employ the known methods of working paper or paper-pulp invarious forms,

I claim--- structed of papenas described, the vibrating 1. An organ-pipeconstructed of paper or lip or wind-cutter -B, constructed of paperpaper-pulp, as herein described. goate'd'with' cement and secured to thepipe,

2. An organ-pipe composed of a series of substantially as described.convolute layers of paper cemented together GILES BEACH.- and coatedwithimpervious cement, substan- I tially as specified. 1 I 3. Incombination with, an organ-pipecon;

Witnesses HENRY T. BROWN, VERNON H HARRIS.

